Ryzen Threadripper PRO 3975WX vs i7-7740K
Primary details
Comparing Core i7-7740K and Ryzen Threadripper PRO 3975WX processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | not rated | 76 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Desktop processor | Server |
| Series | no data | AMD Ryzen Threadripper |
| Power efficiency | no data | 13.22 |
| Architecture codename | Kaby Lake-X (2017) | Matisse (2019−2020) |
| Release date | no data | 14 July 2020 (4 years ago) |
Detailed specifications
Core i7-7740K and Ryzen Threadripper PRO 3975WX basic parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters indirectly say of CPU speed, though for more precise assessment you have to consider their test results.
| Physical cores | 4 (Quad-Core) | 32 (Dotriaconta-Core) |
| Threads | no data | 64 |
| Base clock speed | no data | 3.5 GHz |
| Boost clock speed | 4.3 GHz | 4.2 GHz |
| Multiplier | no data | 35 |
| L1 cache | 64 KB (per core) | 64K (per core) |
| L2 cache | 256 KB (per core) | 512K (per core) |
| L3 cache | 8192 KB (shared) | 128 MB |
| Chip lithography | 14 nm | 7 nm, 12 nm |
| Die size | no data | 74 mm2 |
| Maximum core temperature | no data | 95 °C |
| Maximum case temperature (TCase) | 72 °C | 95 °C |
| Number of transistors | no data | 3,800 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | + |
| Unlocked multiplier | + | + |
Compatibility
Information on Core i7-7740K and Ryzen Threadripper PRO 3975WX compatibility with other computer components: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.
| Number of CPUs in a configuration | 1 | 1 |
| Socket | 1151 | sWRX8 |
| Power consumption (TDP) | 112 Watt | 280 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core i7-7740K and Ryzen Threadripper PRO 3975WX. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | MMX, SSE, SSE2, SSE3, SSSE3, SSE4A, SSE4.1, SSE4.2, AES, AVX, AVX2, BMI1, BMI2, SHA, F16C, FMA3, AMD64, EVP, AMD-V, SMAP, SMEP, SMT, Precision Boost 2, XFR 2 |
| AES-NI | + | + |
| AVX | + | + |
| Enhanced SpeedStep (EIST) | + | no data |
| TSX | + | - |
| Precision Boost 2 | no data | + |
Security technologies
Core i7-7740K and Ryzen Threadripper PRO 3975WX technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Core i7-7740K and Ryzen Threadripper PRO 3975WX are enumerated here.
| AMD-V | - | + |
| VT-d | + | no data |
| VT-x | + | no data |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Core i7-7740K and Ryzen Threadripper PRO 3975WX. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4 | DDR4-3200 |
| Maximum memory size | no data | 2 TiB |
| Maximum memory bandwidth | no data | 204.8 GB/s |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | HD 630 | - |
Peripherals
Specifications and connection of peripherals supported by Core i7-7740K and Ryzen Threadripper PRO 3975WX.
| PCIe version | no data | 4.0 |
| PCI Express lanes | no data | 128 |
Pros & cons summary
| Physical cores | 4 | 32 |
| Chip lithography | 14 nm | 7 nm |
| Power consumption (TDP) | 112 Watt | 280 Watt |
i7-7740K has 150% lower power consumption.
Ryzen Threadripper PRO 3975WX, on the other hand, has 700% more physical cores, and a 100% more advanced lithography process.
We couldn't decide between Core i7-7740K and Ryzen Threadripper PRO 3975WX. We've got no test results to judge.
Note that Core i7-7740K is a desktop processor while Ryzen Threadripper PRO 3975WX is a server/workstation one.
Other comparisons
We've compiled a selection of CPU comparisons, ranging from closely matched processors to other comparisons that may be of interest.
